JPH05228386A - Plastic-coated ball - Google Patents
Plastic-coated ballInfo
- Publication number
- JPH05228386A JPH05228386A JP4035126A JP3512692A JPH05228386A JP H05228386 A JPH05228386 A JP H05228386A JP 4035126 A JP4035126 A JP 4035126A JP 3512692 A JP3512692 A JP 3512692A JP H05228386 A JPH05228386 A JP H05228386A
- Authority
- JP
- Japan
- Prior art keywords
- ball
- coated
- core
- ceramic
- plastic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Crushing And Grinding (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、プラスチックス被覆ボ
ールに関し、混合解砕用ボールミル用ボールなどに使用
される。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic-coated ball, which is used as a ball for a ball mill for mixing and crushing.
【０００２】[0002]
【従来の技術】従来のプラスチックス被覆ボールは、芯
材として金属球を使用し、それの外周をいろいろな厚さ
にてウレタン、ナイロンでコーティング(被覆)したもの
であった。2. Description of the Related Art Conventional plastics-coated balls have been prepared by using a metal ball as a core material and coating (covering) the outer circumference of the ball with urethane or nylon in various thicknesses.
【０００３】[0003]
【発明が解決しようとする課題】従来のプラスチックス
被覆ボールを用いて、種々の粉末を混合、解砕する際、
特に水などを用いた湿式混合などの場合、繰り返しの使
用により被覆プラスチックスが傷ついたり、破損したり
してボール内に水などが浸透し、芯材である鉄系の金属
または合金が腐食し、錆が発生し混合試料を汚染する問
題があり、折角試料の純度の低下を防ぐためにプラスチ
ックス被覆ボールを使用しているのにその目的を果たせ
ないことになる。When mixing and crushing various powders using conventional plastics-coated balls,
Especially in the case of wet mixing with water etc., the coated plastics will be damaged or damaged by repeated use and water etc. will penetrate into the balls, corroding the iron-based metal or alloy as the core material. However, there is a problem that rust is generated and the mixed sample is contaminated, and the purpose cannot be achieved even though the plastics-coated balls are used to prevent the deterioration of the purity of the sample.
【０００４】[0004]
【課題を解決するための手段】上記の問題点を解決すべ
く種々検討した結果、本発明者はボールの芯材がセラミ
ックスよりなることを特徴とするプラスチックス被覆ボ
ールおよびボールの芯材がセラミックスによりコーティ
ングされていることを特徴とするプラスチックス被覆ボ
ールを見出した。As a result of various studies to solve the above problems, the present inventor has found that the core material of the ball is made of ceramics, and the plastics-coated ball and the core material of the ball are made of ceramics. We have found a plastics-coated ball characterized by being coated with.
【０００５】以下、図面を参考にしながら本発明を詳し
く説明する。図１〜４は、本発明のボールの一例の断面
図であり、本発明のボールは、この図の例に限るもので
はない。図１のボールの芯材１は炭化ケイ素、アルミ
ナ、窒化ケイ素、ジルコニア、サーメットなどのセラミ
ックスで、水などの液体に対して変質、腐食しにくい材
料である。これらのものは腐食性液体に対しても耐食性
に優れており、それらの液と接触しても錆などを発生し
ない材料である。これらのものは一般的な製法で焼結し
たセラミックス体が普通であるが、場合によっては、単
結晶体またはオールドセラミックスからなる焼結体など
の塊であってもよい。The present invention will be described in detail below with reference to the drawings. 1 to 4 are cross-sectional views of an example of the ball of the present invention, and the ball of the present invention is not limited to the example of this figure. The core material 1 of the ball in FIG. 1 is ceramics such as silicon carbide, alumina, silicon nitride, zirconia, and cermet, and is a material that is not easily deteriorated or corroded by a liquid such as water. These materials are excellent in corrosion resistance against corrosive liquids and do not generate rust or the like even when they come into contact with these liquids. These are usually ceramic bodies sintered by a general manufacturing method, but in some cases, they may be a lump such as a single crystal body or a sintered body made of old ceramics.
【０００６】これらの芯材１の周りをウレタン樹脂、ウ
レタンゴム、ナイロン樹脂などのプラスチックまたはゴ
ムで被覆したボールが本発明である。その被覆厚さは限
定されるものではないが、普通は１〜１０mm程度が一般
的である。図２は図１の被覆プラスチック部２を分割
し、その接合部を接着させたものでその接着面３の数は
限定されるものではない。The present invention is a ball in which the core material 1 is covered with plastic such as urethane resin, urethane rubber, nylon resin or rubber. Although the coating thickness is not limited, it is generally about 1 to 10 mm. In FIG. 2, the coated plastic part 2 of FIG. 1 is divided and the joints thereof are adhered, and the number of the adhering surfaces 3 is not limited.
【０００７】一方、図３のボールの芯材４は、水や腐食
性液体に対し耐食性を十分に持たない金属材料などより
なり、その芯材４の外表面をセラミックスコーティング
し、それらの膜５を介してその外側を上記と同じような
プラスチックまたはゴムで被覆したのが本発明のボール
である。On the other hand, the core material 4 of the ball shown in FIG. 3 is made of a metal material or the like which does not have sufficient corrosion resistance to water or corrosive liquid. The outer surface of the core material 4 is coated with ceramics to form a film 5 thereof. The ball of the present invention is obtained by coating the outside with plastic or rubber similar to the above through the above.
【０００８】セラミックスのコーティング方法はＣＶ
Ｄ，ＰＶＤ，溶射などがあり、そのコーティング材は、
炭化ケイ素、窒化ケイ素、窒化ホウ素、ダイヤモンド、
炭化チタン、窒化チタンなどであり、そのコート膜厚は
限定されるものではないが、イオンプレーティングの場
合には、２〜３μｍ、ＣＶＤの場合には、５００μｍ前
後まで被覆することができる。セラミックスコート膜の
外側のプラスチックまたはゴムの厚さも限定されるもの
ではないが、１〜１０mm程度が一般的である。また、そ
のプラスチックまたはゴムの被覆部５は分割されていて
もよく、その接合部が十分に接着されていれば、接着面
の数は限定されるものではない。The ceramic coating method is CV
D, PVD, thermal spray, etc., the coating material is
Silicon carbide, silicon nitride, boron nitride, diamond,
Titanium carbide, titanium nitride and the like, the coating film thickness of which is not limited, but in the case of ion plating it can be coated up to about 2 to 3 μm, and in the case of CVD up to around 500 μm. The thickness of the plastic or rubber on the outside of the ceramic coat film is not limited, but is generally about 1 to 10 mm. Further, the plastic or rubber covering portion 5 may be divided, and the number of the adhering surfaces is not limited as long as the joint portion is sufficiently adhered.
【０００９】本発明のボールの大きさについては、セラ
ミックス芯材であろうとセラミックスコートであろうと
限定されるものではない。The size of the ball of the present invention is not limited to a ceramic core material or a ceramic coat.
【００１０】[0010]
【実施例】以下に、実施例および比較例により説明す
る。 実施例１ 芯材がアルミナ焼結体(２０mmφ，密度３．９ｇ／cm2）
で厚さ２．５mmのウレタンゴムの外周部を有するボール
６９００個を、ウレタン内張りボールミル（２００mm
Ｌ，５８５mmφ)にＦｅ含量２７０ppmの平均粒径０．４
５μｍの炭化ケイ素微粉２０kgと成形用バインダーとし
てのＰＶＡ４００g、水６kg、更にＢ4Ｃを焼結助剤とし
て９５ｇ添加して７２時間混合した後、スプレードライ
ヤーにて顆粒化した。その顆粒を分析してＦe含量を測
定した結果、２８０ppmで殆ど増加していないことが認
められた。EXAMPLES Examples and comparative examples will be described below. Example 1 The core material was an alumina sintered body (20 mmφ, density 3.9 g / cm 2 ).
The 6900 balls with a 2.5 mm thick urethane rubber outer periphery are attached to a urethane lined ball mill (200 mm
L, 585 mmφ) with an Fe content of 270 ppm and an average particle size of 0.4
20 kg of 5 μm fine silicon carbide powder, 400 g of PVA as a binder for molding, 6 kg of water, and 95 g of B 4 C as a sintering aid were added and mixed for 72 hours and then granulated by a spray dryer. As a result of analyzing the granules and measuring the Fe content, it was found that there was almost no increase at 280 ppm.
【００１１】比較例１ 同一寸法の鉄芯製ウレタンボールを実施例１の代わりに
使用する以外は、条件などを同じにして混合し、顆粒化
した。その結果、顆粒のＦe含量は１１５０ppmで、Ｆｅ
不純物の増加が４倍強認められた。Comparative Example 1 The same conditions and the like were used except that iron core urethane balls of the same size were used instead of Example 1, and the mixture was granulated. As a result, the Fe content of the granules was 1150 ppm,
The increase in impurities was recognized to be more than four times.
【００１２】[0012]
【発明の効果】本発明のボールを使用すると、プラスチ
ックス被覆層が損傷しても、芯材が耐食性に優れたセラ
ミックスまたはセラミックスコーティングで覆われてい
るため水などが浸透しても錆びることもなく、不純物増
加を極力抑えることができ、長時間混合材料の純度を安
定して維持することができる。EFFECTS OF THE INVENTION When the ball of the present invention is used, even if the plastics coating layer is damaged, the core material is coated with ceramics or a ceramics coating having excellent corrosion resistance, and therefore, even if water or the like penetrates, it rusts. Therefore, the increase of impurities can be suppressed as much as possible, and the purity of the mixed material can be stably maintained for a long time.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明に係る芯材がセラミックスであるボール
の一実施例の断面図である。FIG. 1 is a cross-sectional view of an embodiment of a ball whose core material is ceramics according to the present invention.
【図２】本発明に係るセラミックス芯材のボールの別の
一実施例の断面図で、外周部が分割接合されたものであ
る。FIG. 2 is a cross-sectional view of another embodiment of the ceramic core material ball according to the present invention, in which the outer peripheral portion is divided and joined.
【図３】本発明に係るセラミックスコーティングされた
芯材のボールの一実施例の断面図である。FIG. 3 is a cross-sectional view of an example of a ceramic-coated core material ball according to the present invention.
【図４】外周部が分割接合された本発明に係るセラミッ
クスコーティング芯材のボールの一実施例の断面図であ
る。FIG. 4 is a cross-sectional view of an example of the ball of the ceramic coating core material according to the present invention, the outer peripheral portion of which is divided and joined.
１ セラミックス製芯材 ２ 外周部 ２ａ 分割された外周部 ２ｂ 分割された外周部 ３ 接着面 ４ セラミックス以外の芯材 ５ セラミックスコーティング層 DESCRIPTION OF SYMBOLS 1 ceramic core material 2 outer peripheral part 2a divided outer peripheral part 2b divided outer peripheral part 3 adhesive surface 4 core material other than ceramics 5 ceramic coating layer
Claims (2)
とを特徴とするプラスチックス被覆ボール。1. A plastics-coated ball characterized in that the core material of the ball is made of ceramics.
ティングされていることを特徴とするプラスチックス被
覆ボール。2. A plastics-coated ball characterized in that the core material of the ball is coated with ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4035126A JPH05228386A (en) | 1992-02-21 | 1992-02-21 | Plastic-coated ball |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4035126A JPH05228386A (en) | 1992-02-21 | 1992-02-21 | Plastic-coated ball |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05228386A true JPH05228386A (en) | 1993-09-07 |
Family
ID=12433243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4035126A Pending JPH05228386A (en) | 1992-02-21 | 1992-02-21 | Plastic-coated ball |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05228386A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6670294B2 (en) * | 2001-01-25 | 2003-12-30 | Ngk Insulators, Ltd. | Corrosion-resistive ceramic materials and members for semiconductor manufacturing |
| WO2007126048A1 (en) * | 2006-04-28 | 2007-11-08 | Daiichi Sankyo Company, Limited | Process for producing homogeneous and stable suspension and apparatus therefor |
| CN102600939A (en) * | 2012-02-29 | 2012-07-25 | 重庆利特高新技术有限公司 | Nanometer zirconia ceramic reinforced wear-resisting steel ball and manufacturing technique thereof |
| CN102896025A (en) * | 2011-12-15 | 2013-01-30 | 河南科技大学东海硅产业节能技术研究院 | Composite grinding ball |
| CN111533561A (en) * | 2020-07-06 | 2020-08-14 | 佛山华骏特瓷科技有限公司 | Silicon nitride-based ceramic ball and preparation method and application thereof |
| US12027294B2 (en) | 2021-09-27 | 2024-07-02 | Nichia Corporation | Method of producing SmFeN-based rare earth magnet |
| US12027306B2 (en) | 2021-06-10 | 2024-07-02 | Nichia Corporation | Method of producing SmFeN-based rare earth magnet |
-
1992
- 1992-02-21 JP JP4035126A patent/JPH05228386A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6670294B2 (en) * | 2001-01-25 | 2003-12-30 | Ngk Insulators, Ltd. | Corrosion-resistive ceramic materials and members for semiconductor manufacturing |
| WO2007126048A1 (en) * | 2006-04-28 | 2007-11-08 | Daiichi Sankyo Company, Limited | Process for producing homogeneous and stable suspension and apparatus therefor |
| CN102896025A (en) * | 2011-12-15 | 2013-01-30 | 河南科技大学东海硅产业节能技术研究院 | Composite grinding ball |
| CN102600939A (en) * | 2012-02-29 | 2012-07-25 | 重庆利特高新技术有限公司 | Nanometer zirconia ceramic reinforced wear-resisting steel ball and manufacturing technique thereof |
| CN111533561A (en) * | 2020-07-06 | 2020-08-14 | 佛山华骏特瓷科技有限公司 | Silicon nitride-based ceramic ball and preparation method and application thereof |
| US12027306B2 (en) | 2021-06-10 | 2024-07-02 | Nichia Corporation | Method of producing SmFeN-based rare earth magnet |
| US12027294B2 (en) | 2021-09-27 | 2024-07-02 | Nichia Corporation | Method of producing SmFeN-based rare earth magnet |
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